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added a tooltip

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This commit is contained in:
Ellpeck 2019-08-13 23:54:29 +02:00
parent d6f2704464
commit 5d2f77e95c
8 changed files with 80 additions and 22 deletions
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18
Examples/GameImpl.cs
View file

@ -32,8 +32,8 @@ namespace Examples {
PanelTexture = this.testPatch,
ButtonTexture = new NinePatch(new TextureRegion(this.testTexture, 24, 8, 16, 16), 4),
TextFieldTexture = new NinePatch(new TextureRegion(this.testTexture, 24, 8, 16, 16), 4),
ScrollBarBackground = new NinePatch(new TextureRegion(this.testTexture, 8, 0, 4, 8), 1, 1, 2, 2),
ScrollBarScrollerTexture = new NinePatch(new TextureRegion(this.testTexture, 12, 0, 4, 8), 1, 1, 2, 2),
ScrollBarBackground = new NinePatch(new TextureRegion(this.testTexture, 12, 0, 4, 8), 1, 1, 2, 2),
ScrollBarScrollerTexture = new NinePatch(new TextureRegion(this.testTexture, 8, 0, 4, 8), 1, 1, 2, 2),
CheckboxTexture = new NinePatch(new TextureRegion(this.testTexture, 24, 8, 16, 16), 4),
CheckboxCheckmark = new TextureRegion(this.testTexture, 24, 0, 8, 8),
RadioTexture = new NinePatch(new TextureRegion(this.testTexture, 16, 0, 8, 8), 3),
@ -43,12 +43,12 @@ namespace Examples {
this.UiSystem.Style = style;
this.UiSystem.GlobalScale = 5;
var root = new Panel(Anchor.Center, new Vector2(80, 100), Point.Zero, false, true, new Point(5, 10));
var root = new Panel(Anchor.Center, new Vector2(80, 100), Vector2.Zero, false, true, new Point(5, 10));
this.UiSystem.Add("Test", root);
root.AddChild(new Paragraph(Anchor.AutoLeft, 1, "This is a small demo for MLEM.Ui, a user interface library that is part of (M)LEM (L)ibrary by (E)llpeck for (M)onoGame."));
var image = root.AddChild(new Image(Anchor.AutoCenter, new Vector2(50, 50), new TextureRegion(this.testTexture, 0, 0, 8, 8)) {IsHidden = true, Padding = new Point(3)});
root.AddChild(new Button(Anchor.AutoCenter, new Vector2(1, 10), "Toggle Test Image") {
root.AddChild(new Button(Anchor.AutoCenter, new Vector2(1, 10), "Toggle Test Image", "This button shows a grass tile as a test image to show the automatic anchoring of objects.") {
OnClicked = (element, button) => {
if (button == MouseButton.Left)
image.IsHidden = !image.IsHidden;
@ -61,7 +61,7 @@ namespace Examples {
if (button == MouseButton.Left)
this.UiSystem.Style = this.UiSystem.Style == untexturedStyle ? style : untexturedStyle;
},
PositionOffset = new Point(0, 1),
PositionOffset = new Vector2(0, 1),
HasCustomStyle = true,
Texture = this.testPatch,
HoveredColor = Color.LightGray
@ -69,7 +69,7 @@ namespace Examples {
root.AddChild(new VerticalSpace(3));
root.AddChild(new Paragraph(Anchor.AutoCenter, 1, "Text input:", true));
root.AddChild(new TextField(Anchor.AutoLeft, new Vector2(1, 10)) {PositionOffset = new Point(0, 1)});
root.AddChild(new TextField(Anchor.AutoLeft, new Vector2(1, 10)) {PositionOffset = new Vector2(0, 1)});
root.AddChild(new VerticalSpace(3));
root.AddChild(new Paragraph(Anchor.AutoLeft, 1, "Zoom in or out:"));
@ -84,16 +84,16 @@ namespace Examples {
if (element.Root.Scale > 0.5F)
element.Root.Scale -= 0.1F;
},
PositionOffset = new Point(1, 0)
PositionOffset = new Vector2(1, 0)
});
root.AddChild(new VerticalSpace(3));
root.AddChild(new Checkbox(Anchor.AutoLeft, new Vector2(1, 10), "Checkbox 1!"));
root.AddChild(new Checkbox(Anchor.AutoLeft, new Vector2(1, 10), "Checkbox 2!") {PositionOffset = new Point(0, 1)});
root.AddChild(new Checkbox(Anchor.AutoLeft, new Vector2(1, 10), "Checkbox 2!") {PositionOffset = new Vector2(0, 1)});
root.AddChild(new VerticalSpace(3));
root.AddChild(new RadioButton(Anchor.AutoLeft, new Vector2(1, 10), "Radio button 1!"));
root.AddChild(new RadioButton(Anchor.AutoLeft, new Vector2(1, 10), "Radio button 2!") {PositionOffset = new Point(0, 1)});
root.AddChild(new RadioButton(Anchor.AutoLeft, new Vector2(1, 10), "Radio button 2!") {PositionOffset = new Vector2(0, 1)});
}
protected override void Draw(GameTime gameTime) {

8
MLEM.Ui/Elements/Button.cs
View file

@ -11,12 +11,18 @@ namespace MLEM.Ui.Elements {
public NinePatch HoveredTexture;
public Color HoveredColor;
public Paragraph Text;
public Tooltip Tooltip;
public Button(Anchor anchor, Vector2 size, string text = null) : base(anchor, size) {
public Button(Anchor anchor, Vector2 size, string text = null, string tooltipText = null, float tooltipWidth = 50) : base(anchor, size) {
if (text != null) {
this.Text = new Paragraph(Anchor.Center, 1, text, true);
this.AddChild(this.Text);
}
if (tooltipText != null) {
this.Tooltip = new Tooltip(tooltipWidth, tooltipText);
this.OnMouseEnter += element => this.System.Add("ButtonTooltip", this.Tooltip);
this.OnMouseExit += element => this.System.Remove("ButtonTooltip");
}
}
public override void Draw(GameTime time, SpriteBatch batch, float alpha, Point offset) {

6
MLEM.Ui/Elements/Element.cs
View file

@ -21,7 +21,7 @@ namespace MLEM.Ui.Elements {
}
private Anchor anchor;
private Vector2 size;
private Point offset;
private Vector2 offset;
public Point Padding;
public Point ScaledPadding => this.Padding.Multiply(this.Scale);
private Point childPadding;
@ -44,7 +44,7 @@ namespace MLEM.Ui.Elements {
}
}
public Vector2 ScaledSize => this.size * this.Scale;
public Point PositionOffset {
public Vector2 PositionOffset {
get => this.offset;
set {
if (this.offset == value)
@ -53,7 +53,7 @@ namespace MLEM.Ui.Elements {
this.SetAreaDirty();
}
}
public Point ScaledOffset => this.offset.Multiply(this.Scale);
public Point ScaledOffset => (this.offset * this.Scale).ToPoint();
public Point ChildPadding {
get => this.childPadding;
set {

6
MLEM.Ui/Elements/Panel.cs
View file

@ -14,7 +14,7 @@ namespace MLEM.Ui.Elements {
private readonly bool scrollOverflow;
private RenderTarget2D renderTarget;
public Panel(Anchor anchor, Vector2 size, Point positionOffset, bool setHeightBasedOnChildren = false, bool scrollOverflow = false, Point? scrollerSize = null) : base(anchor, size) {
public Panel(Anchor anchor, Vector2 size, Vector2 positionOffset, bool setHeightBasedOnChildren = false, bool scrollOverflow = false, Point? scrollerSize = null) : base(anchor, size) {
this.PositionOffset = positionOffset;
this.SetHeightBasedOnChildren = setHeightBasedOnChildren;
this.scrollOverflow = scrollOverflow;
@ -30,14 +30,14 @@ namespace MLEM.Ui.Elements {
if (firstChild == element)
return;
// as all children have to be auto-aligned, moving the first one up will move all others
firstChild.PositionOffset = new Point(firstChild.PositionOffset.X, -value.Ceil());
firstChild.PositionOffset = new Vector2(firstChild.PositionOffset.X, -value.Ceil());
this.ForceUpdateArea();
}
};
this.AddChild(this.ScrollBar);
// modify the padding so that the scroll bar isn't over top of something else
this.ScrollBar.PositionOffset -= new Point(scrollSize.X + 1, 0);
this.ScrollBar.PositionOffset -= new Vector2(scrollSize.X + 1, 0);
this.ChildPadding += new Point(scrollSize.X, 0);
}
}

25
MLEM.Ui/Elements/Paragraph.cs
View file

@ -5,6 +5,7 @@ using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using MLEM.Extensions;
using MLEM.Font;
using MLEM.Textures;
using MLEM.Ui.Style;
namespace MLEM.Ui.Elements {
@ -12,10 +13,14 @@ namespace MLEM.Ui.Elements {
private string text;
private float lineHeight;
private float longestLineLength;
private string[] splitText;
private IGenericFont font;
private readonly bool centerText;
public NinePatch Background;
public Color BackgroundColor;
public Color TextColor = Color.White;
public float TextScale;
public string Text {
get => this.text;
@ -37,24 +42,32 @@ namespace MLEM.Ui.Elements {
this.splitText = this.font.SplitString(this.text, size.X, this.TextScale * this.Scale).ToArray();
this.lineHeight = 0;
this.longestLineLength = 0;
var height = 0F;
foreach (var strg in this.splitText) {
var strgHeight = this.font.MeasureString(strg).Y * this.TextScale * this.Scale;
height += strgHeight + 1;
if (strgHeight > this.lineHeight)
this.lineHeight = strgHeight;
var strgScale = this.font.MeasureString(strg) * this.TextScale * this.Scale;
height += strgScale.Y + 1;
if (strgScale.Y > this.lineHeight)
this.lineHeight = strgScale.Y;
if (strgScale.X > this.longestLineLength)
this.longestLineLength = strgScale.X;
}
return new Point(size.X, height.Ceil());
}
public override void Draw(GameTime time, SpriteBatch batch, float alpha, Point offset) {
if (this.Background != null) {
var backgroundArea = new Rectangle(this.Area.X + offset.X, this.Area.Y + offset.Y, this.longestLineLength.Ceil() + this.ScaledPadding.X * 2, this.Area.Height + this.ScaledPadding.Y * 2);
batch.Draw(this.Background, backgroundArea, this.BackgroundColor * alpha);
}
var pos = this.DisplayArea.Location.ToVector2();
var off = offset.ToVector2();
foreach (var line in this.splitText) {
if (this.centerText) {
this.font.DrawCenteredString(batch, line, pos + off + new Vector2(this.DisplayArea.Width / 2, 0), this.TextScale * this.Scale, Color.White * alpha);
this.font.DrawCenteredString(batch, line, pos + off + new Vector2(this.DisplayArea.Width / 2, 0), this.TextScale * this.Scale, this.TextColor * alpha);
} else {
this.font.DrawString(batch, line, pos + off, Color.White * alpha, 0, Vector2.Zero, this.TextScale * this.Scale, SpriteEffects.None, 0);
this.font.DrawString(batch, line, pos + off, this.TextColor * alpha, 0, Vector2.Zero, this.TextScale * this.Scale, SpriteEffects.None, 0);
}
off.Y += this.lineHeight + 1;
}

35
MLEM.Ui/Elements/Tooltip.cs Normal file
View file

@ -0,0 +1,35 @@
using System;
using Microsoft.Xna.Framework;
using MLEM.Extensions;
using MLEM.Font;
using MLEM.Ui.Style;
namespace MLEM.Ui.Elements {
public class Tooltip : Paragraph {
public Vector2 MouseOffset = new Vector2(2, 3);
public Tooltip(float width, string text, IGenericFont font = null) :
base(Anchor.TopLeft, width, text, false, font) {
this.Padding = new Point(2);
}
public override void Update(GameTime time) {
base.Update(time);
this.PositionOffset = this.MousePos.ToVector2() / this.Scale + this.MouseOffset;
}
public override void ForceUpdateArea() {
if (this.Parent != null)
throw new NotSupportedException($"A tooltip shouldn't be the child of another element ({this.Parent})");
base.ForceUpdateArea();
}
protected override void InitStyle(UiStyle style) {
base.InitStyle(style);
this.Background = style.TooltipBackground;
this.BackgroundColor = style.TooltipBackgroundColor;
}
}
}

2
MLEM.Ui/Style/UiStyle.cs
View file

@ -22,6 +22,8 @@ namespace MLEM.Ui.Style {
public NinePatch RadioHoveredTexture;
public Color RadioHoveredColor;
public TextureRegion RadioCheckmark;
public NinePatch TooltipBackground;
public Color TooltipBackgroundColor;
public IGenericFont Font;
public float TextScale = 1;

2
MLEM.Ui/Style/UntexturedStyle.cs
View file

@ -22,6 +22,8 @@ namespace MLEM.Ui.Style {
this.RadioTexture = GenerateTexture(batch, Color.AliceBlue);
this.RadioHoveredColor = Color.LightGray;
this.RadioCheckmark = GenerateTexture(batch, Color.CornflowerBlue).Region;
this.TooltipBackground = GenerateTexture(batch, Color.DarkGray);
this.TooltipBackgroundColor = new Color(Color.Black, 0.65F);
this.Font = new EmptyFont();
}